kpriv/linux-hardened
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

[ARM] 4186/1: iop: remove cp6_enable/disable routines

Browse source 
This functionality is replaced by cp6_trap

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Dan Williams 2007-02-13 17:13:04 +01:00 committed by Russell King
parent f80dff9da0
commit 4434c5c7fd
9 changed files with 0 additions and 121 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

19
arch/arm/mach-iop13xx/irq.c
View file

@ -161,65 +161,49 @@ static void write_intsize(u32 val)
static void
iop13xx_irq_mask0 (unsigned int irq)
{
u32 cp_flags = iop13xx_cp6_save();
write_intctl_0(read_intctl_0() & ~(1 << (irq - 0)));
iop13xx_cp6_restore(cp_flags);
}
static void
iop13xx_irq_mask1 (unsigned int irq)
{
u32 cp_flags = iop13xx_cp6_save();
write_intctl_1(read_intctl_1() & ~(1 << (irq - 32)));
iop13xx_cp6_restore(cp_flags);
}
static void
iop13xx_irq_mask2 (unsigned int irq)
{
u32 cp_flags = iop13xx_cp6_save();
write_intctl_2(read_intctl_2() & ~(1 << (irq - 64)));
iop13xx_cp6_restore(cp_flags);
}
static void
iop13xx_irq_mask3 (unsigned int irq)
{
u32 cp_flags = iop13xx_cp6_save();
write_intctl_3(read_intctl_3() & ~(1 << (irq - 96)));
iop13xx_cp6_restore(cp_flags);
}
static void
iop13xx_irq_unmask0(unsigned int irq)
{
u32 cp_flags = iop13xx_cp6_save();
write_intctl_0(read_intctl_0() | (1 << (irq - 0)));
iop13xx_cp6_restore(cp_flags);
}
static void
iop13xx_irq_unmask1(unsigned int irq)
{
u32 cp_flags = iop13xx_cp6_save();
write_intctl_1(read_intctl_1() | (1 << (irq - 32)));
iop13xx_cp6_restore(cp_flags);
}
static void
iop13xx_irq_unmask2(unsigned int irq)
{
u32 cp_flags = iop13xx_cp6_save();
write_intctl_2(read_intctl_2() | (1 << (irq - 64)));
iop13xx_cp6_restore(cp_flags);
}
static void
iop13xx_irq_unmask3(unsigned int irq)
{
u32 cp_flags = iop13xx_cp6_save();
write_intctl_3(read_intctl_3() | (1 << (irq - 96)));
iop13xx_cp6_restore(cp_flags);
}
static struct irq_chip iop13xx_irqchip1 = {
@ -256,7 +240,6 @@ void __init iop13xx_init_irq(void)
{
unsigned int i;
u32 cp_flags = iop13xx_cp6_save();
iop_init_cp6_handler();
/* disable all interrupts */
@ -288,6 +271,4 @@ void __init iop13xx_init_irq(void)
set_irq_handler(i, handle_level_irq);
set_irq_flags(i, IRQF_VALID | IRQF_PROBE);
}
iop13xx_cp6_restore(cp_flags);
}

10
arch/arm/mach-iop13xx/time.c
View file

@ -38,11 +38,8 @@ static inline u32 read_tcr1(void)
unsigned long iop13xx_gettimeoffset(void)
{
unsigned long offset;
u32 cp_flags;
cp_flags = iop13xx_cp6_save();
offset = next_jiffy_time - read_tcr1();
iop13xx_cp6_restore(cp_flags);
return offset / ticks_per_usec;
}
@ -50,8 +47,6 @@ unsigned long iop13xx_gettimeoffset(void)
static irqreturn_t
iop13xx_timer_interrupt(int irq, void *dev_id)
{
u32 cp_flags = iop13xx_cp6_save();
write_seqlock(&xtime_lock);
asm volatile("mcr p6, 0, %0, c6, c9, 0" : : "r" (1));
@ -64,8 +59,6 @@ iop13xx_timer_interrupt(int irq, void *dev_id)
write_sequnlock(&xtime_lock);
iop13xx_cp6_restore(cp_flags);
return IRQ_HANDLED;
}
@ -78,7 +71,6 @@ static struct irqaction iop13xx_timer_irq = {
void __init iop13xx_init_time(unsigned long tick_rate)
{
u32 timer_ctl;
u32 cp_flags;
ticks_per_jiffy = (tick_rate + HZ/2) / HZ;
ticks_per_usec = tick_rate / 1000000;
@ -91,12 +83,10 @@ void __init iop13xx_init_time(unsigned long tick_rate)
* We use timer 0 for our timer interrupt, and timer 1 as
* monotonic counter for tracking missed jiffies.
*/
cp_flags = iop13xx_cp6_save();
asm volatile("mcr p6, 0, %0, c4, c9, 0" : : "r" (ticks_per_jiffy - 1));
asm volatile("mcr p6, 0, %0, c0, c9, 0" : : "r" (timer_ctl));
asm volatile("mcr p6, 0, %0, c5, c9, 0" : : "r" (0xffffffff));
asm volatile("mcr p6, 0, %0, c1, c9, 0" : : "r" (timer_ctl));
iop13xx_cp6_restore(cp_flags);
setup_irq(IRQ_IOP13XX_TIMER0, &iop13xx_timer_irq);
}

4
arch/arm/mach-iop32x/irq.c
View file

@ -23,16 +23,12 @@ static u32 iop32x_mask;
static inline void intctl_write(u32 val)
{
iop3xx_cp6_enable();
asm volatile("mcr p6, 0, %0, c0, c0, 0" : : "r" (val));
iop3xx_cp6_disable();
}
static inline void intstr_write(u32 val)
{
iop3xx_cp6_enable();
asm volatile("mcr p6, 0, %0, c4, c0, 0" : : "r" (val));
iop3xx_cp6_disable();
}
static void

12
arch/arm/mach-iop33x/irq.c
View file

@ -24,44 +24,32 @@ static u32 iop33x_mask1;
static inline void intctl0_write(u32 val)
{
iop3xx_cp6_enable();
asm volatile("mcr p6, 0, %0, c0, c0, 0" : : "r" (val));
iop3xx_cp6_disable();
}
static inline void intctl1_write(u32 val)
{
iop3xx_cp6_enable();
asm volatile("mcr p6, 0, %0, c1, c0, 0" : : "r" (val));
iop3xx_cp6_disable();
}
static inline void intstr0_write(u32 val)
{
iop3xx_cp6_enable();
asm volatile("mcr p6, 0, %0, c2, c0, 0" : : "r" (val));
iop3xx_cp6_disable();
}
static inline void intstr1_write(u32 val)
{
iop3xx_cp6_enable();
asm volatile("mcr p6, 0, %0, c3, c0, 0" : : "r" (val));
iop3xx_cp6_disable();
}
static inline void intbase_write(u32 val)
{
iop3xx_cp6_enable();
asm volatile("mcr p6, 0, %0, c12, c0, 0" : : "r" (val));
iop3xx_cp6_disable();
}
static inline void intsize_write(u32 val)
{
iop3xx_cp6_enable();
asm volatile("mcr p6, 0, %0, c13, c0, 0" : : "r" (val));
iop3xx_cp6_disable();
}
static void

4
arch/arm/plat-iop/time.c
View file

@ -51,9 +51,7 @@ iop3xx_timer_interrupt(int irq, void *dev_id)
{
write_seqlock(&xtime_lock);
iop3xx_cp6_enable();
asm volatile("mcr p6, 0, %0, c6, c1, 0" : : "r" (1));
iop3xx_cp6_disable();
while ((signed long)(next_jiffy_time - *IOP3XX_TU_TCR1)
>= ticks_per_jiffy) {
@ -87,12 +85,10 @@ void __init iop3xx_init_time(unsigned long tick_rate)
* We use timer 0 for our timer interrupt, and timer 1 as
* monotonic counter for tracking missed jiffies.
*/
iop3xx_cp6_enable();
asm volatile("mcr p6, 0, %0, c4, c1, 0" : : "r" (ticks_per_jiffy - 1));
asm volatile("mcr p6, 0, %0, c0, c1, 0" : : "r" (timer_ctl));
asm volatile("mcr p6, 0, %0, c5, c1, 0" : : "r" (0xffffffff));
asm volatile("mcr p6, 0, %0, c1, c1, 0" : : "r" (timer_ctl));
iop3xx_cp6_disable();
setup_irq(IRQ_IOP3XX_TIMER0, &iop3xx_timer_irq);
}

26
include/asm-arm/arch-iop13xx/iop13xx.h
View file

@ -12,32 +12,6 @@ void iop13xx_init_irq(void);
void iop13xx_init_time(unsigned long tickrate);
unsigned long iop13xx_gettimeoffset(void);
/* handle cp6 access
* to do: handle access in entry-armv5.S and unify with
* the iop3xx implementation
* note: use iop13xx_cp6_enable_irq_save and iop13xx_cp6_irq_restore (irq.h)
* when interrupts are enabled
*/
static inline unsigned long iop13xx_cp6_save(void)
{
u32 temp, cp_flags;
asm volatile (
"mrc p15, 0, %1, c15, c1, 0\n\t"
"orr %0, %1, #(1 << 6)\n\t"
"mcr p15, 0, %0, c15, c1, 0\n\t"
: "=r" (temp), "=r"(cp_flags));
return cp_flags;
}
static inline void iop13xx_cp6_restore(unsigned long cp_flags)
{
asm volatile (
"mcr p15, 0, %0, c15, c1, 0\n\t"
: : "r" (cp_flags) );
}
/* CPUID CP6 R0 Page 0 */
static inline int iop13xx_cpu_id(void)
{

17
include/asm-arm/arch-iop13xx/irqs.h
View file

@ -3,8 +3,6 @@
#ifndef __ASSEMBLER__
#include <linux/types.h>
#include <asm/system.h> /* local_irq_save */
#include <asm/arch/iop13xx.h> /* iop13xx_cp6_* */
/* INTPND0 CP6 R0 Page 3
*/
@ -41,21 +39,6 @@ static inline u32 read_intpnd_3(void)
asm volatile("mrc p6, 0, %0, c3, c3, 0":"=r" (val));
return val;
}
static inline void
iop13xx_cp6_enable_irq_save(unsigned long *cp_flags, unsigned long *irq_flags)
{
local_irq_save(*irq_flags);
*cp_flags = iop13xx_cp6_save();
}
static inline void
iop13xx_cp6_irq_restore(unsigned long *cp_flags,
unsigned long *irq_flags)
{
iop13xx_cp6_restore(*cp_flags);
local_irq_restore(*irq_flags);
}
#endif
#define INTBASE 0

2
include/asm-arm/arch-iop13xx/system.h
View file

@ -48,12 +48,10 @@ static inline void arch_reset(char mode)
/*
* Reset the internal bus (warning both cores are reset)
*/
u32 cp_flags = iop13xx_cp6_save();
write_wdtcr(IOP13XX_WDTCR_EN_ARM);
write_wdtcr(IOP13XX_WDTCR_EN);
write_wdtsr(IOP13XX_WDTSR_WRITE_EN | IOP13XX_WDTCR_IB_RESET);
write_wdtcr(0x1000);
iop13xx_cp6_restore(cp_flags);
for(;;);
}

27
include/asm-arm/hardware/iop3xx.h
View file

@ -283,33 +283,6 @@ void iop_init_cp6_handler(void);
extern struct platform_device iop3xx_i2c0_device;
extern struct platform_device iop3xx_i2c1_device;
extern inline void iop3xx_cp6_enable(void)
{
u32 temp;
asm volatile (
"mrc p15, 0, %0, c15, c1, 0\n\t"
"orr %0, %0, #(1 << 6)\n\t"
"mcr p15, 0, %0, c15, c1, 0\n\t"
"mrc p15, 0, %0, c15, c1, 0\n\t"
"mov %0, %0\n\t"
"sub pc, pc, #4\n\t"
: "=r" (temp) );
}
extern inline void iop3xx_cp6_disable(void)
{
u32 temp;
asm volatile (
"mrc p15, 0, %0, c15, c1, 0\n\t"
"bic %0, %0, #(1 << 6)\n\t"
"mcr p15, 0, %0, c15, c1, 0\n\t"
"mrc p15, 0, %0, c15, c1, 0\n\t"
"mov %0, %0\n\t"
"sub pc, pc, #4\n\t"
: "=r" (temp) );
}
#endif